If Madrid/Lisbon/Buenos Aries had damp weather for 9 months of the year you would be saying the opposite.
The weather plays a huge part in what a place is like, it’s easy to get confused when analysing a city.
You're mad mate. How can you think Manchester is even comparable to those cities, weather aside? Out of interest what do you base your argument as to whether a city is good or not? Most of us would compare cuisine, culture, price, weather (yes disregard if you like), activities, nightlife etc. They trump Manchester probably on every level.